OEM Stock Injector

Features:

• OEM stock replacement fuel injector
• Ideal for restoring factory performance
• Maintains original fuel flow specifications
• Direct fit with no modifications required
• Precision tested for reliable operation
• Includes new o-rings and seals
• Compatible with stock fuel system components
• Perfect for daily driving or towing setups

Stock Replacement Injector for LLY Duramax

If your LLY Duramax is running rough, losing fuel economy, or just isn’t pulling like it used to, chances are your injectors are tired. The Industrial Injection 0986435504-IIS OEM Stock Injector is a direct replacement for the 2004.5–2005 GM 2500HD and 3500HD 6.6L Duramax and is the perfect choice for anyone looking to restore factory performance without overcomplicating the job. This injector is built to OEM specs and delivers the same fuel flow and response your truck had straight from the factory. It’s a great option if you’re not chasing extra horsepower but want smooth starts, solid idle, and reliable power—especially if your truck is still pulling trailers or working daily. Industrial Injection doesn’t just throw parts together either; each injector is precisely tested and balanced to ensure consistent performance and long-term reliability.

Fits: 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY